The position of the intrinsic Fermi level of an undoped semiconductor (EFi) is given by:
A. $$\frac{{{{\text{E}}_{\text{C}}} - {{\text{E}}_{\text{V}}}}}{2} + \frac{{{\text{kT}}}}{2}\ln \frac{{{{\text{N}}_{\text{V}}}}}{{{{\text{N}}_{\text{C}}}}}$$
B. $$\frac{{{{\text{E}}_{\text{C}}} + {{\text{E}}_{\text{V}}}}}{2} - \frac{{{\text{kT}}}}{2}\ln \frac{{{{\text{N}}_{\text{V}}}}}{{{{\text{N}}_{\text{C}}}}}$$
C. $$\frac{{{{\text{E}}_{\text{C}}} + {{\text{E}}_{\text{V}}}}}{2} + \frac{{{\text{kT}}}}{2}\ln \frac{{{{\text{N}}_{\text{V}}}}}{{{{\text{N}}_{\text{C}}}}}$$
D. $$\frac{{{{\text{E}}_{\text{C}}} - {{\text{E}}_{\text{V}}}}}{2} - \frac{{{\text{kT}}}}{2}\ln \frac{{{{\text{N}}_{\text{V}}}}}{{{{\text{N}}_{\text{C}}}}}$$
Answer: Option C
This Question Belongs to Electronics And Communications Engineering >> Electronic Devices And Circuits
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